Q: What are the prime factors of the number 11,220,706?

 A: 2, 7, 61, 1877

Why are those the prime factors of the number 11,220,706?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 11,220,706

11,220,706
Factor Arrows
25,610,353
Factor Arrows
7801,479
Factor Arrows
7114,497
Factor Arrows
611,877

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 7, 61, 1877

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 61 x 1,877 = 11,220,706

This can also be written as 21 x 72 x 611 x 1,8771 = 11,220,706

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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